Overview
The BSS138 is a MOSFET made by Galaxy Microelectronics in a SOT-23 package with 3 pins. 1 N-channel 1.2V 1.4Ω@10V 200mA 25pF 300mW 50V 50pF 8pF N-Channel ±20V SOT-23 MOSFETs ROHS.
PCBKit's library has its KiCad symbol (Transistor_FET:BSS138, from KiCad's library) and its footprint (Package_TO_SOT_SMD:SOT-23, from KiCad's library), ready for a KiCad board. 2,962 are in stock at JLCPCB (part C53133584).
Symbol
Footprint
Pinout
3| Pin | Name | Type |
|---|---|---|
| 1 | G | Input |
| 2 | S | Passive |
| 3 | D | Passive |
Parts like it
8
2N7002
SOT-23-55℃~+150℃ 1 N-channel 2.5V 210mA 223pC@4.5V 370mW 50pF 5pF 60V 7.5Ω@5V SOT-23 MOSFETs ROHSDiodes IncorporatedMOSFETs2N7002KT
SOT-523-55℃~+150℃ 1 N-channel 1.5V 150W 3.5pF 300pC@10V 31pF 340mA 3Ω@10V 60V N-Channel SOT-523 MOSFETs ROHShongjiachengMOSFETs2N7002KM
SOT-23SOT-23 MOSFETs ROHSDongChenMOSFETsSQ2361CEES-T1_GE3
SOT-23SOT-23 MOSFETs ROHSVishay IntertechnologyMOSFETs2N7002K
SOT-23-55℃~+150℃ 1 N-channel 2.5V 25pF 300mA 350mW 3Ω@10V 50pF 5pF 60V N-Channel ±20V SOT-23 MOSFETs ROHSbaochengMOSFETs2N7002KS
SOT-23SOT-23 MOSFETs ROHSDongChenMOSFETsBSS84,215(ES)
SOT-23SOT-23 MOSFETs ROHSElecSuperMOSFETs2N7002K
SOT-23-55℃~+150℃ 1 N-channel 1.8nC 12pF 2.5V 300mA 300mW 33pF 4pF 60V 970mΩ@10V N-Channel Standalone ±20V SOT-23 MOSFETs ROHSORIENTAL SEMIMOSFETs
Questions
Is there a KiCad symbol and footprint for the BSS138?
Yes. The symbol is Transistor_FET:BSS138 and the footprint Package_TO_SOT_SMD:SOT-23, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the BSS138?
SOT-23, with 3 pins. Its footprint is drawn on this page.
Where can I order the BSS138?
JLCPCB lists it as part C53133584, with 2,962 in stock; the sellers' links on this page open their listings.
What can replace the BSS138?
Parts like it in the library: the 2N7002 by Diodes Incorporated, the 2N7002KT by hongjiacheng, the 2N7002KM by DongChen and the SQ2361CEES-T1_GE3 by Vishay Intertechnology. Check their datasheets: a part that fits the footprint may still differ in its ratings.